Finding the Fourth Proportional to 103,559,507, 142,915,549.98 and 56,519,148.92
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Solution
The fourth proportional to 103,559,507, 142,915,549.98 and 56,519,148.92 is: 77,998,297.66
Step by Step Solution
- Step 1: Write the proportion equation
103,559,507 : 142,915,549.98 = 56,519,148.92 : x - Step 2: Convert to fraction form
103,559,507/142,915,549.98 = 56,519,148.92/x - Step 3: Cross multiply
103,559,507x = 142,915,549.98 × 56,519,148.92 - Step 4: Simplify right side
103,559,507x = 8,077,465,252,303,323 - Step 5: Solve for x
x = 8,077,465,252,303,323/103,559,507 - Step 6: Final answer
x = 77,998,297.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.